Nick Thomas-Symonds responds to arrest of UK Embassy employee in Germany

“This is a serious breach of UK national security.

“All measures must now be taken - urgently - to establish exactly what information has been passed to Russian intelligence and the impact this has on the UK, as well as that of our allies.

“This is yet another example of the real threat posed by Russia, so it is unacceptable that Conservative Ministers have been so slow to enact the measures necessary to protect the UK, including implementing the recommendations of the Russia Report.”